Learn about:
SF3D 1982-1986
MaK 1998-Present
Mercenary Forces
Strahl Forces (SDR)
Unknown/Unaffiliated
Blech Mann
Robot Battle V
I. H. Y. S. Club

All designs listed alphabetically:
Achilles B
AFS Archelon
AFS MkI
AFS MkII
AFS MkII Type E
AFS Trident
Augenstern
B-4500
Bananaboat
Bull Hound
Calliope
Camel
Camelboat
Cerberus
Centaur
Chaika
Dollhouse
Dollhouse AA
Dora
Eggeater
Elefanten
F-Boot
Falcon & Rat
Falke
Falke II
Ferkel
Fireball
Fireball SG
Firefly
Fledermaus
Fliege
Friedrich
Fuchs
Gans
Gans (Land Gans)
Gladiator
Gladiator MkII
Goblin
Grasshopper
Green Buffalo
Greif
Großerhund
Gucker
Gustav
Gustav G-4
Heinrich
Hornisse
Hornisse PK43
Hummel
Hyper AFS
Intersepter
Jerry
Käfer
Kanguruh
Kauz
Ketzer
KH-503
Königs-Kröte
Konrad
KrachenVogel
Kröte
Kröte Ausf PaK
Küster
Launcelot
Lunadiver Stingray
MaK Girl (Raptor)
Makel
Melusine
MK 41
MK 41 Space Type
MK 42
MK 44
MK 44 Space Type
MK 52 G
Moby Dick
Morgenstern
Neptune
Neuspinne
Neuspotter Anton
Neuspotter Bruno
Neuwasser
New Fireball
Nutrocker
Nutrocker II
One of Pluto
Oskar
Polar Bear
PK240
PKA Ausf HO
PKA Ausf G-6/U4
PKA Space Prototype
Proto-Powered Suit
Prowler
PzKfz 182
Raccoon
Raptor
Ravin
Reynard
SAFS MkI
SAFS MkI A-5/N
SAFS MkI A-5/R2
SAFS MkI A-9
SAFS MkI A-9/N
SAFS MkII
SAFS MkII Trident
SAFS MkIII
SAFS MkIII A-8/R-7
SAFS MkIII A-8/R-8
SAFS Prototype
Salamander
Salvage Freighter
Sand Stalker Sdh222 F
Sand Stalker Sdh232 M
Schallgewehrtraktor
Schenkel
Scout Flier
Sea Pig
Seduce
Skinhead
Snake Eye
Sph69 Hovertruck
Sph69-P Troop Carrier
Sphinx
Sternail
Sturm Käfer
Super Jerry
Super Prowler
Tornado
Undine
Unidentified
Walrus
Wespe
Y-15
Zerstover (Lunar Rover)

©2005 Kow Yokoyama

Strahl Demokratische Republik

The Strahl (also sometimes referred to as "Shutoral", the phonetic pronunciation of the German word) are akin to the Axis powers in World War II. Maschinen Krieger is, after all, a loose interpretation of World War II as played out in the future that is the late 2800s. Information is sketchy and sometimes contradictory, as we have to sometimes rely on off-kilter translations from the Japanese.

Apparently the backstory chronicles the colonial uprising on Earth. The following was taken from Rob Brunskill's excellent site:

This war was the first armed conflict to take place on Earth since the depopulation early in the 29th century. Once the cradle of humanity, World War IV ravaged the planet and made it uninhabitable. By 2855 the planet was safe enough to begin terraforming and planning for colonization. What was once humanity's only home became a backwater colonial planet, and a haven for criminals, mercenaries, persecuted, migrants, farmers, laborers, and many more seeking refuge. Earth was largely ignored by the Galactic Federation until 2877, when control of the planet was given to the Strahl Demokratische Republik.

The resulting war that soon followed between the SDR and the rebel Earth forces—commonly known as the Mercenary Army—fielded an incredible array of new technology. The armored fighting suit, artificial intelligence, and antigravity propulsion all made their first mainstream military appearance.